Cabinet construction



Sept 3, 1929. F. A. ANETSBERGER ET AL I 1,726,794

- CABINET coNsTnUcTIoN Filed Dec. 29, 192'? 2 sheets-sheet 1 lig-l Sept3, 1929- F. A. ANETSBERGER lfl-:T Al. 1,726,794

CABINET coNsTRUcTioN Filed Deo. 29, 1927 2 Sheets-Sheet Reis 23e/ (amPatented Sept. 3, 1929.

Unirse STATES PATENT OFFICE.

CABINET CONSTRUCTION.

Application led December 29, 1927.

This invention relates to improvements in cabinet construction adaptedespecially for use in connection with bakers proof boxes or otherreceptacles from which it is desirable to prevent the escape of heatedair through the doors thereof.

The principal object of the invention is to provide an improvedconstruction providing sliding doors, which, while they can be easilymoved to open or closed position, will, when closed, co-operate one withthe other and with the cabinet pro-per to prevent the escape of heatedair.

Another object is to provide a cabinet, the doors of which are rigid butlight in weight, and which can be moved in use without eX- cessive eort.

A further object of the invention is to so arrange the doors and stopsthat the jolts caused by sliding the doors will be directed to portionsof the cabinet adapted to withstand the same.

An additional object relates to the construction and arrangement of thehandles for the doors, one of which is adapted to cooperate with theother door in absorbing and directing the shocks incident to use.

Other objects relate to various features of construction and arrangementof parts which will become apparent from a consideration of thefollowing specification and the accompanying drawings herein.

Fig. 1 is a front elevation of a proof boX embodying the presentimprovements;

Fig. 2 is a broken side elevation thereof;

Fig. 3 is an enlarged sectional view taken on line 3-3 of Fig. 1, itbeing assumed that the left hand door is in open position;

Fig. 4 is a vertical sectional view taken on line 4-4 of Fig. 1;

Fig. 5 is a sectional view taken on line 5 5 of Fig. 1;

Fig. 6 is an enlarged broken detached perspective view illustratingcertain features of the door construction, and

Fig. 7 is a perspective view of a handle.

In the drawings the cabinet 10 is preferably made ofV sheet metal, thebody of which may be of any approvedconstruction The cabinet is providedwith a pair of sliding doors 11 and 12 for providing access to thecabinet. In the construction of the forward portion of the cabinet, thetop 13, as shown in Fig. 3, is bent upwardly, then horizontally and thendownwardly to form the tongue or Serial No. 243,266.

sealing flange 14, the free end of the material of the flange being thenbent back upon itself to provide a two layer construction. As will beseen this provides an inverted channel within which the track'15 may besecured. The track vis of sheet metal, preferably of rectangular crosssection and having a longitudinalslot or opening 16 extending the entirelength thereof. An L shape bar 17 is secured to the rear corner of thechannel portion of the top 13 to strengthen the same as shown in Fig. 3.A second or front track member 18 is secured to the top anglemember 19,which is joined at its ends with the front co-rner members 2O and 21,and'they in turn are connected to the bottom angle member 22. The anglebars 19 to 22, inclusive, are preferably united by welding and as willbe seen thus form a rigidframe for the door structure. The side wall 23of the cabinet, as shown in Fig. 5, is bent to form an angle Whichcontacts with the inner surface ofthe corner member 20 and is foldedbackvupon itself to form the double flange 24. The opposite side wall 25of the cabinet is given a U shape in cross section, as shown in Fig. 5,the lfree edge 26 of which is turned toward the wall 25 to form asealing flange 26a which prevents air circulation past the edge of the'door when-closed. The edge 26b is turned toward the front of thecabinet to prevent engagement with the edge with the door. A space 26cis provided which aords access to the interior of the U shaped cornerfor convenience in attaching rivets, bolts (not shown) or other means bywhich the metal of the wall 25 is secured to the corner bar 21. Thebottom 27 of the cabinet as shown in Fig. 4 is bent downwardly, thenhorizontally, and then upwardly to form the transverse sealing strip 28,the free edge being bent back to form a double construction. The-forwardportion of the bottom 27 is secured to the lower angle member 22 by anyapproved means, such as by bolts, rivets, but preferably by welding.Similar means for attaching the other walls of the cabinet to therespective corner members 19 to 21, inclusive, maybe employed. Certainfeatures of the above described construction are shown in ourapplication Serial Number 167,286, filed Feb. 10, 1927, for breadraising cabinets.

The doors 11 and 12 are also formed of sheetmetal, preferably. Each doorhas an lll) outer or front sheet 29, which at its vertical edges is bentbackwardly and then toward the center of the sheet, the free edges 29abeing given an angularity less than a right angle for reasonshereinafter mentioned.

The bottom of the sheet 29 is bent to form a. flange 30, shown in Fig.6, spaced from the sheet 29, a distance corresponding to the desiredwidth of the door. The doors may have continuous inner walls, but wehave found the construction shown in Figs. 5 and 6 suitable for thepurpose an-d as shown, the inner walls are formed in two sections 31 and32 of similar construction. These sections are formed of sheet metalhaving portions 33, 33a, bent at suitable angles with reference thereto,the free edges of which are bent back into parallelism with the mainbody of the members to form the flanges 34, 34a. The corners between theflanges 33 an-d 34 seat in the inner forward corners of the sheet 29 toreinforce the same as will be clear. The flanges 34, 34a, are secured,as by welding, to the back surface of the sheet 29 and are prefer* ablydisposed at their bottom ends in the channel 30a between the sheet 29and the flange 30. The angularly disposed flanges 29 of the sheet 29contact with the flanges 33, 33 of sheet 31 and 32, and are securedthereto preferably by means of welding at suitable points', such as at35, 35.

yThe lines of contact of the flanges 29a and the flanges 31 and 32 are-disposed slightly inwardly of the plane of the inner surface of thedoorthus precluding engagement of the edges of flanges 29a of the outer doorwith any portion of the inner door and lessening the likelihood of thecorresponding flanges of the inner door engaging any obstruction of thecabinet interior which might cause damages to the door. r

The upper end of the sheets 29, 31 and 32 are bent inwardly and thenupwardly as shown in Fig. 6 to embrace an inverted T shaped bar 36, saidmembers being riveted or welded together. lt is also desirable to weldthe sheet metal to the edges of the horizontal flange of the T bar asshown at 36a, 36a, to provide additional rigidity.

.Each door is provided kwith two pairs of rollers 37, which slide in oneor the other of the tracks 15 and 18. The rollers are carried on pins oraxles 37a which are confined in position by the vertical side walls ofthe respective tracks. By this construction no door hangers are requiredand a less costly and tighter construction is provided. As shown in 3,the upwardly extending portion ofthe bar 36 isl spaced but a shortdistance from the top portion of the respective tracks, thus providing abaffle construction which assists in preventing the escape of heated airfrom. the cabinet. In order for air to escape from the upper portion ofone side ofthe cabinet it must pass into the track 15 over the member 33and out of the track beneath the flange 14 or at the other side of thecabinet into and out of the track member 17 and between the lowerportion of the angle member 19 and the outer door 12. The rollers 37 eX-tend slightly above the upper edge of the bar 36 and will thus preventthe bar engaging with the track and interfering with the free operationof the door should the door tend to rock on a horizontal axis as whenobstructed slightly near the bottom or when the user imbalances the doorin operating it. This construction has been found to provide a doorwhich moves freely at all times and renders unnecessary the applicationof excessive effort in operating the doors which in prior constructionsresults frequently in such jolts and vibrations being imparted to thecabinets that the rising dough is caused to fall.

The doors 11 and 12 are provided with handles 39, having extended basesas shown in detail in Fig. 7. rllhe wide bases of the handles affordadditional areas for securing the same to the doors and thus prevent thehandles from being torn from the doors when the latter are slammed toopen or closed position in use. As shown in Fig. 5, the eXtension 40 ofhandle 39 on the inner door 11 will slide under the left hand edgeof thedoor 12 when door 11 is moved to open position. The width of the door 11is such that its handle 39 acts as a stop against the left hand edge ofdoor 12 when door 11 is opened, and thus prevents the right hand edge ofdoor 11 from being stopped solely by the sheet metal wall 23. When door11 is moved to closed position, as shown in Fig. 5, the left handle 39engages the bar 21, which prevents the stresses and jolts from beingimparted to the side wall 25 by the left hand edge of the door. Whendoor 12 is moved to open position, the left hand edge thereof is stoppedby the left handle 39, the extension 40 being suliiciently thin topermit the door 12 to slide over the same into contact with thefbody ofthe handle. The right hand edge of door 12 engages the side wall 23along a line thereof which is reinforced by the corner member 20. rlhisarrangement results in materially prolonging the life of the door` andcabinet construction.

The handles 39, preferably have recesses 41, 41 therein for engagementby the hands of the user. The recesses, however, do not extend throughthe handles and thus the user cannot get his fingers caught in thehandles and pinched in operating the doors.

A sealing strip 42 is secured to the inner door 11 and when the door isclosed it serves to seal the space between the overlying portions of thedoors to prevent the escape of heated air therethrough. The constructiondescribed provides a door of ,suitable depth or thickness at its lateraledges and at the bottom and it is also sufficiently light in weight tooperate easily and without developing excessive stresses when slammed toopen or closed positions.

In installing the doors in operative position, the respective trackmembers 15 and 18, which are open at their ends, are slid into positionwith reference to the rollers 37 and flanges 36 of the doors, and thedoors and tracks are then together inserted in their respective channelsat the upper end of the cabinet, and attached in position by bolts orother approved means. It will be noticed that suitable space is providedat the bottom channels, as shown in Fig. 4, for permitting the doors tobe dropped down suliiciently so the upper ends thereof will clear thelower horizontal edge of the corner member 19 when installingr thedoors. This space beneath the doors also provides room for particles offoreign matter, which may be dropped therein, but for the depth of whichthe free movement of the doo-rs might be interfered with.

Although we have shown certain features of our improvements for thepurpose of illustration, it will be apparent that various changes may bemade therein without departing from the spirit of the invention and wedo not wish to be restricted to the specific details of constructionherein shown and described except as limited thereto by the appendedclaims.

What we claim is:

1. A sliding door construction comprising a pair of parallel memberseach having a central longitudinal slot in the lower side thereofforming a pair of co-operating track members, a sealing strip extendingdownwardly between said track members, a pair of doors each supported byone pair of tracks, each door having inner and outer sheet metal sidewalls, said walls adjacent the upper end of the door being bent inwardlyof the door, a member engaged by said bent portions and having avertical flange extending through one of said slots, and rollers carriedby said flange for running on said tracks, said sealing stripco-operating with said doors below the inwardly bent portions thereof toprevent the escape 0f heated air therethrough.

2. A door having an outer sheet metal wall, said wall being benthorizontally to form the bottom end of the door and upwardly to form achannel, the vertical sides of said wall being bent rearwardly to formthe edges of the door, the edge portions terminating in flanges disposedat a slight angle with reference to the plane of the inner surface o fthe door, the inner wall of the door comprising a sheet of metal havingits lateral edges bent to form angular flanges which contact with therear surface of the front sheet, the lower end of said inner sheetseating in the channel formed at the bottom of the outer sheet, saidflanges of said front sheet contacting with and being secured to one ofthe angular flanges of the inner sheet in lines slightly inwardly of theinner surface of the door, said inner and outer sheets being bentinwardly of the door at their upper ends, va rigid member embraced bysaid bent portions of said sheets and being secured thereto and having avertically extending flange, and door supporting rollers carried by saidflange.

3. A door structure comprising a transverse vertically disposed flangedmember at the top thereof and inner and outer spaced sheet metal wallmembers secured to said member and depending therefrom, one of saidsheets being provided with a channel at the lower end, the other sheetseating in said channel, said inner sheet having vertical flangescontacting with the inner surface of the outer sheet, said outer sheetextending rearwardly at its lateral portions to form the vertical edgesof the door structure, said rearwardly extending portions terminating inianges contacting with the adjacent vertical flanges of the inner sheetand being secured thereto.

4. kA door structure comprising a transverse vertically disposed flangedmember at the top thereof and inner and outer spaced sheet metal wallmember secured to said member and depending therefrom, one of saidsheets being provided with a channel at its lower end, the other. sheetseating in said channel, said inner sheet having vertical iiangescontacting with the inner surface of the outer sheet, said outer sheetextending rearwardly at its lateral portions to form the vertical edgesof the door structure, said rearwardly extending portions terminating inflanges contacting with the adjacent vertical flanges of the inner sheetand being secured thereto, the lines of contact of said flanges beingdisposed slightly inwardly of the plane of the inner surface of thedoor.

5. A door structure comprising a transverse rigid member at the topthereof, and inner and outer sheet metal wall members se cured theretoand depending therefrom, said outer sheet being bent at its bottom andlateral edges to form channels, said inner sheet seating in the bottomchannel and having its lateral edges angularly disposed within said sidechannels, the free vertical edges of the outer sheet being secured tothe inner sheet along lines disposed slightly inwardly of the innerplane of the door.

6. A door structure comprising a transverse rigid member at the topthereof, an outer sheet metal wall member secured thereto and dependingtherefrom, the bottom of said sheet being bent to forni a channel, thelateral edge of said sheet being bent first rearwardly to form thevertical edges of the door and then 'inwardly substantially toward eachother to form side channels, inner sheet metal wall members secured tosaid rigid member and seating at their lower ends in said bottomchannel, said inner sheet members having their lateral portions inclinedtoward the outer sheet, said portions terminating in flangescontactingpwith the inner surface of said outer sheet and being securedthereto, the lateral portion of each of said inner sheets adjacent therespective edges of the door being disposed in one of said sidechannels, the free edges of the outer sheet being secured to theadjacent inclined portions of said inner sheets.

7. A sliding door comprising spaced inner 'and outer sheet metal walls,said walls hav ing lateral flanges co-operating to stiften the dooralong its vertical edges, one of said walls having a base flange tostiffen the door along the bottom thereof, and a rigid transverse bardisposed between said walls adjacent the upper ends thereof and beingsecured thereto, said bar having a vertical flange of less width thanthe door structure, transverse members carried by the flange and roll`ers on said members.

8. A sliding door construction comprising a pair of parallel memberseach having a longitudinal slot in the lower side thereof forming a pairof cooperating track members,a sealing strip extending downwardlybetween said track members, a pair of doors each supported by one ofsaid tracks, each door having an upwardly projecting flange at the topthereof extending through one of said slots, and rollers carried by eachof said flanges for running on therespective tracks, said sealing stripcooperating with said doors below the junction of the same with saidflanges to prevent the escape of heated air therethrough.

9. A sliding door construction comprisingy a pair of parallel memberseach having a longitudinal slot in the lower side thereof forming a pairof cooperating tracks, a pair of doors each supported by one of thepairs of tracks, each door having an upwardly directed flange securedwithin the door structure and extending through one of said slots,rollers carried by each of said flanges for running on its respectivetracks, and a downwardly directed sealing member disposed between said`doors and cooperating with the same beneath the junction thereof withsaid flanges.

In testimony whereof, we have subscribed FRANK A. ANETSBERGER. NILLIAMvANETSBERGER.

